In an empty space in its former factory in Fukushima Prefecture, Japan, electronics-maker Fujitsu is now developing an unusual product: lettuce. Grown in a clean room, the lettuce has been engineered to contain low amounts of potassium. The growing operation uses a cloud computing system to optimize levels of humidity, CO2 ,and fertilizer.

Fujitsu developed the lettuce, and other vegetables to follow, in part to be eaten by people with kidney disease or on dialysis, who cannot handle vegetables with high levels of potassium. Whereas most lettuce contains about 500 mg of the mineral per 100 grams, this lettuce has five times less, according to the Japan Times. The lettuce should also taste less bitter, as it contains lower levels of nitrates.